When you know, you know, right? We reckon that Justin Bieber agrees, because he’s popped the big question to on-again off-again girlfriend, Hailey Baldwin. Since rekindling their romance last month, the pair have been frequently spotted out and about together and have shared perhaps one too many PDA moments. Get a room guys, please… https://www.instagram.com/p/Bk-thjODTc5/?hl=en&taken-by=people According to some sources, Justin, 24, made arrangements for an engagement ring while